Your small intestine does most of the digesting of the foods you eat. If you have a malabsorption syndrome, your small intestine cannot absorb nutrients from foods. Causes of malabsorption syndromes include. 1  Celiac disease. 2  Lactose intolerance.  Short bowel syndrome. This happens after surgery to remove half or more of the small intestine. You might need the surgery if you have a problem with the small intestine from a disease, injury, or birth defect.
The exhaust manifold obviously carries exhaust away from the engine compartment. When the manifold fails to completely perform that function, fumes can enter the coach. This was not detected however in my coach so that telltale signal was missing. The manifold if leaking can reportedly injure the engine. And exhaust gases are used by the turbo system. If that is not performed well, you will notice a loss of boost (power) and mpg. If left unattended (repaired) the leak can also leak hot gasses into equipment and areas where it does not belong.
Step 4 - Block Heating. If you canât loosen the bolt inside the engine block, then loosen the engine block around the bolt. Use a hand held torch to get the engine block around the exhaust manifold stud as hot as possible. The stud casing will expand with the heat, giving a little wiggle room for the bolt.ust and corrosion can also fuse the exhaust manifold studs to the engine block of your older vehicle. Whether itâs to replace the manifold itself or to get at other parts inside your engine, off the bolts must come. When your exhaust manifold studs are stuck, try these tricks to get them off.